9
5
2
1
6
3
7
4
9
6
2
4
9
6
3
1
4
9
1
2
7
4
5
3
9

This Sudoku Puzzle has 63 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Triple, Naked Single, Swordfish, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 2 / Column 4 → 9 (Hidden Single)
2. Row 3 / Column 1 → 4 (Hidden Single)
3. Row 6 / Column 2 → 9 (Hidden Single)
4. Row 9 / Column 3 → 2 (Hidden Single)
5. Row 4 / Column 7 → 9 (Hidden Single)
6. Row 7 / Column 6 → 9 (Hidden Single)
7. Locked Candidates Type 1 (Pointing): 6 in b1 => r7c3<>6
8. Locked Candidates Type 1 (Pointing): 2 in b2 => r1c78<>2
9. Row 6 / Column 7 → 2 (Hidden Single)
10. Locked Candidates Type 1 (Pointing): 5 in b6 => r3c9<>5
11. Locked Candidates Type 1 (Pointing): 7 in b6 => r9c8<>7
12. Naked Triple: 5,7,8 in r2c5,r3c46 => r1c46<>5, r1c46<>8
13. Row 1 / Column 7 → 5 (Hidden Single)
14. Naked Triple: 5,6,8 in r8c125 => r8c6<>5, r8c689<>8, r8c89<>6
15. Row 8 / Column 6 → 1 (Naked Single)
16. Swordfish: 5 r359 c246 => r4c46,r6c46,r8c2<>5
17. Row 8 / Column 2 → 8 (Naked Single)
18. Row 1 / Column 2 → 3 (Naked Single)
19. Row 2 / Column 8 → 3 (Hidden Single)
20. Row 2 / Column 9 → 2 (Hidden Single)
21. Row 8 / Column 9 → 4 (Naked Single)
22. Row 8 / Column 8 → 2 (Naked Single)
23. Row 2 / Column 2 → 1 (Hidden Single)
24. Row 4 / Column 8 → 4 (Hidden Single)
25. Row 4 / Column 3 → 1 (Hidden Single)
26. Row 5 / Column 4 → 1 (Hidden Single)
27. Row 5 / Column 8 → 7 (Hidden Single)
28. Row 5 / Column 2 → 5 (Naked Single)
29. Row 5 / Column 6 → 8 (Full House)
30. Row 9 / Column 2 → 7 (Full House)
31. Row 7 / Column 3 → 3 (Naked Single)
32. Row 9 / Column 7 → 8 (Naked Single)
33. Row 7 / Column 1 → 6 (Naked Single)
34. Row 8 / Column 1 → 5 (Full House)
35. Row 8 / Column 5 → 6 (Full House)
36. Row 3 / Column 7 → 1 (Naked Single)
37. Row 7 / Column 7 → 7 (Full House)
38. Row 9 / Column 8 → 6 (Naked Single)
39. Row 7 / Column 9 → 1 (Full House)
40. Row 7 / Column 4 → 8 (Full House)
41. Row 1 / Column 8 → 8 (Full House)
42. Row 3 / Column 9 → 6 (Full House)
43. Row 3 / Column 4 → 5 (Naked Single)
44. Row 1 / Column 3 → 6 (Naked Single)
45. Row 3 / Column 6 → 7 (Naked Single)
46. Row 3 / Column 3 → 8 (Full House)
47. Row 2 / Column 1 → 7 (Full House)
48. Row 2 / Column 5 → 8 (Full House)
49. Row 6 / Column 3 → 7 (Full House)
50. Row 9 / Column 4 → 3 (Naked Single)
51. Row 9 / Column 6 → 5 (Full House)
52. Row 6 / Column 5 → 5 (Naked Single)
53. Row 4 / Column 5 → 7 (Full House)
54. Row 4 / Column 4 → 2 (Naked Single)
55. Row 6 / Column 9 → 8 (Naked Single)
56. Row 4 / Column 9 → 5 (Full House)
57. Row 1 / Column 4 → 4 (Naked Single)
58. Row 1 / Column 6 → 2 (Full House)
59. Row 6 / Column 4 → 6 (Full House)
60. Row 4 / Column 6 → 3 (Naked Single)
61. Row 4 / Column 1 → 8 (Full House)
62. Row 6 / Column 1 → 3 (Full House)
63. Row 6 / Column 6 → 4 (Full House)